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18. After a temperature change away from 298K, what is the value of the equilibrium constant for RXN I if at the new equilibrium the flask contains 0.236 atm SOs, 0.500 atm O2, and 0.01g sulfur? A) 0.0909 B) 11.0 C) 1.63x10-5 D)6.25x102 E) 2.24

18. After a temperature change away from 298K, what is the value of the equilibrium constant for RXN I if at the new equilibrium the flask contains 0.236 atm SOs, 0.500 atm O2, and 0.01g sulfur? A) 0.0909 B) 11.0 C) 1.63x10-5 D)6.25x102 E) 2.24

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Please do question number 18 and 19.

For questions 17- 22, consider the following three reactions at 298K. 2 SO:(9) <→ 3 O2(g) + 2 S(s) Oz(g) + S(s) €→ SO2(g) 2 SO:(9) E→ Oz(g) + 2 SO2(g) I. K= 0.225 AH = +791KJ II. K= 225 AH = -270 kJ I. 17. Which is a suitable expression for the reaction quotient for a mixture of O2, SO3 and SO2 gases (RXN III)? D) 2.5x105 C)1.1x10-4, A) 75.5 B) 112 E) 0.775 18. After a temperature change away from 298K, what is the value of the equilibrium constant for RXN I if at the new equilibrium the flask contains 0.236 atm SO3, 0.500 atm O2, and 0.01g sulfur? A) 0.0909 B) 11.0 C) 1.63x10-5_ D)6.25x10-2 E) 2.24 19. What change must have occurred if the value of K for RXN I is found to be 0.552? A) An increase in temperature Dj An increase in volume B) A decrease in temperature E) cannot be determined C) An increase in pressure 20. Which is the expression for the reaction quotient for the formation of SO2 from the elements? C) _Poz p2s0: Rs A) Doz B) Do: p2so2 Psoz D) Pso: E) none of these Poz 21. From which of the following starting conditions (combinations of chemicals in the reaction vessel) would it be impossible for equilibrium to be achieved for reaction lI? A) Pure SOz(g). D) Pure Oz(g) and S(s) B) A mixture of SO2(9), Oz(g) and S(s) C) A mixture of SO2(g) and Oz(9) E) Equilibrium can be achieved from any of these starting conditions. 22. Which occurs when adding S(s) to the equilibrium described by reactions I, II, and II? A) a decrease in the pressure of SO:(g) c) an increase in the value of the equilibrium constant E) none of these B) a decrease in the pressure of SO:(g) D) an increase in the total pressure of the system
Transcribed Image Text:For questions 17- 22, consider the following three reactions at 298K. 2 SO:(9) <→ 3 O2(g) + 2 S(s) Oz(g) + S(s) €→ SO2(g) 2 SO:(9) E→ Oz(g) + 2 SO2(g) I. K= 0.225 AH = +791KJ II. K= 225 AH = -270 kJ I. 17. Which is a suitable expression for the reaction quotient for a mixture of O2, SO3 and SO2 gases (RXN III)? D) 2.5x105 C)1.1x10-4, A) 75.5 B) 112 E) 0.775 18. After a temperature change away from 298K, what is the value of the equilibrium constant for RXN I if at the new equilibrium the flask contains 0.236 atm SO3, 0.500 atm O2, and 0.01g sulfur? A) 0.0909 B) 11.0 C) 1.63x10-5_ D)6.25x10-2 E) 2.24 19. What change must have occurred if the value of K for RXN I is found to be 0.552? A) An increase in temperature Dj An increase in volume B) A decrease in temperature E) cannot be determined C) An increase in pressure 20. Which is the expression for the reaction quotient for the formation of SO2 from the elements? C) _Poz p2s0: Rs A) Doz B) Do: p2so2 Psoz D) Pso: E) none of these Poz 21. From which of the following starting conditions (combinations of chemicals in the reaction vessel) would it be impossible for equilibrium to be achieved for reaction lI? A) Pure SOz(g). D) Pure Oz(g) and S(s) B) A mixture of SO2(9), Oz(g) and S(s) C) A mixture of SO2(g) and Oz(9) E) Equilibrium can be achieved from any of these starting conditions. 22. Which occurs when adding S(s) to the equilibrium described by reactions I, II, and II? A) a decrease in the pressure of SO:(g) c) an increase in the value of the equilibrium constant E) none of these B) a decrease in the pressure of SO:(g) D) an increase in the total pressure of the system
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